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Tungsten hexacarbonyl

Reaction Preparation
Tungsten hexacarbonyl
Tungsten hexacarbonyl structure
Chemical Name:
Tungsten hexacarbonyl
W(CO)6;TUNGSTEN CARBONYL;Hexacarbonylwolfram;HEXACARBONYLTUNGSTEN;Tungsten carbonyl 99%;Tungsten hexacarbonyl;tungstenehexacarbonyl;Tungstencarbonyl(W(CO)6);Hexacarbonyltungsten (0);Tungsten hexacarbonyl,99%
Molecular Formula:
Formula Weight:
MOL File:

Tungsten hexacarbonyl Properties

Melting point:
150 °C(lit.)
Boiling point:
175 °C
2.65 g/mL at 25 °C(lit.)
vapor density 
12.1 (vs air)
vapor pressure 
1.2 mm Hg ( 67 °C)
Flash point:
storage temp. 
Store below +30°C.
Fine Crystalline Powder
Light yellow to beige
Water Solubility 
Stable. Incompatible with oxidizing agents.
CAS DataBase Reference
14040-11-0(CAS DataBase Reference)
NIST Chemistry Reference
Tungsten hexacarbonyl(14040-11-0)
EPA Substance Registry System
Tungsten carbonyl (W(CO)6), (OC-6-11)-(14040-11-0)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  T
Risk Statements  23/24/25
Safety Statements  22-24/25-45-38-36/37/39-28A-36/37
RIDADR  UN 3466 6.1/PG 3
WGK Germany  3
Hazard Note  Toxic
HazardClass  6.1
PackingGroup  II
HS Code  29310095
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
Precautionary statements:
P309 IF exposed or if you feel unwell:
P310 Immediately call a POISON CENTER or doctor/physician.

Tungsten hexacarbonyl price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 241431 Tungsten hexacarbonyl 97% 14040-11-0 10g $80.3 2018-11-13 Buy
Sigma-Aldrich 241431 Tungsten hexacarbonyl 97% 14040-11-0 50g $278 2018-11-13 Buy
Alfa Aesar 043205 Hexacarbonyltungsten, 97% 14040-11-0 50g $257 2018-11-16 Buy
Alfa Aesar 043205 Hexacarbonyltungsten, 97% 14040-11-0 10g $67.4 2018-11-16 Buy
Strem Chemicals 74-2200 Tungsten carbonyl, 99% (<0.3%-Mo) 14040-11-0 5g $38 2018-11-13 Buy

Tungsten hexacarbonyl Chemical Properties,Uses,Production


Volatile starting material used for the atomic layer deposition of tungsten oxide, tungsten nitride.
Tungsten hexacarbonyl is used to produce tungsten coatings on base metals. This is done by deposition of the carbonyl on the metal surface, which decomposes to leave a tungsten coating.


Tungsten hexacarbonyl is produced by heating tungsten metal with carbon monoxide at high pressure. Also, carbonyl can be prepared by reducing the tungsten hexachloride by heating with iron powder under carbon monoxide pressure.

Chemical Properties

White, volatile, highly refractive, crystalline solid. Decomposes without melting at 150C. One of the more stable carbonyls. Insoluble in water; soluble in organic solvents.


Tungsten coatings on base metals by deposition and decomposition of the carbonyl.


It is used as a catalyst in many organicsynthetic reactions.

Health Hazard

Toxicity of this compound is not reported.Although air stable at ambient temperature,upon heating it emits toxic carbonmonoxide. Chronic exposure to its vaporsor dusts can cause bronchitis. Ingestion islikely to produce the toxic effect of tungstenoxides.

Fire Hazard

It explodes when heated to high temperature. Solution in ether can explode if stored for a long time.

Purification Methods

Sublime it in vacuo before use [Connoe et al. J Chem Soc, Dalton Trans 511 1986]. TOXIC.

Tungsten hexacarbonyl Preparation Products And Raw materials

Raw materials

Preparation Products

Tungsten hexacarbonyl Suppliers

Global( 79)Suppliers
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Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21915 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20675 55
Mainchem Co., Ltd.
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Chemwill Asia Co.,Ltd.
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Hubei Jusheng Technology Co.,Ltd.
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J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
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Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
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INTATRADE GmbH +49 3493/605464
+49 3493/605470 Germany 3579 66
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30167 84
BeiJing Hwrk Chemicals Limted 4006990298;010-57411839;0757-86311057;021-51691807
010-87653215;0757-86311057;021-55236763 China 14686 55

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